Cording machine



Feb. 21, 1928.

J. FINKELSTEIN coRDING Mmmm:

Eiled April 22, 192e 6 Sheets-Sheet l NSN .wmwv Mm mmN S@ mh QQ N mw NNN .wnhmlum .M M"Lv||l||| |o o mi \M M I.| m* Q. www 1 NWN www N N 1 w w .NN h2 NN NNR u. ww. Lw QN mw m w u VAN .W www TTN. Nm. m n l@ asv um Nm NQNT 1 NNN u N NN NNWMNNN QMN NQN .NN @Q www wx M ATTORNEY Feb. 21,1- 1928. l 1,659,555

J. FINKELSTEIN C'ORDING MACHINE Filed April 1926 6 Sheets-Sheet Y2 INVENTOR I MANOR EY Feb. 21, 192s. 1,559,555

J. FINKELSTEIN GORDIFNG MACHINE l Filed April 22, 1926 6v Sheets-Sheet 5 INVENTOR INVENTOR 6 VSheets--Sheet 4 BY /J w ATTORNEY Feb. 21, 1928.

J. FlNKr-:LSTEIN Gemplus MACHINE Filed Aprilzz. 192e Feb. 21, 1928.

` 1,659,565 J. FINKELSTEIN CORDING MACHINE Filed April 22, 1926 6 Sheets-Sheet 5 Feb. 2l, 1928. l

J. FINKELSTEIN GORDING MACHINE Fi'led April 22. 1926 6 SheetsSheet 6 lll Patented Feb. 2l, 1928.

UNITED STATES PATENT OFFICE.

JOSEPH FINKELSTEIN, OF BROOKLYN, NEW YOX.

CORDIN G MACHINE.

Application filed April 22, 1926. Serial No. 103,715.

pabl'e of operation at higher speeds than has heretofore been possible and to provide means whereby the independently rotatable thread spools may be easily and quickly mounted in or removed from the revoluble twisting frame.

It is a further object of my invention to provide an improved construction of the twisting head at one end of the revoluble frame together with means for tensioning the cord strands and tightening the sameinto compact" association in the cord.

Additional objects of my present improvements are to provide means for driving the cord receiving reel independently of the revoluble twisting head ofthe machine, to provide a reel operating means including a friction clutch to compensate for variations in the surface speed of rotation as the cord accumulates on the reel 'and thus maint-ain a constant uniform pull or tension on the cord, and to provide simple and 'effective means to properly straighten and lay the threads and localize the point of twisting in the spinning y head at which the threads are formed into the cord.

It is also a further general object of my presentimprovements to provide a machine of the above character which is relatively simple in construction, positive and reliable in its operation, and capable of manufacture at comparatively small cost.

Vith the above and other objects in view, the invention @consists in the improved cording machine and in the form, 'construction and relative arrangement of its several parts as will be hereinafter more fully described, illustrated in the accompanying drawings, and subsequently incorporated in the subjoined claims.

In the dra-Wings, wherein I have illustrated one satisfactory and practical embodiment of the invention, and in ywhich similar reference.characters deslgnate 'corresponding parts throughout the several views,-

Figure 1 1s a top plan View of my improved cordnw machlne' I1 ig. 2 1s a side elevation thereof;

111g. 3 1s a front end elevation;

141g. 4 is a deta1l side elevation showing .the drive means for the cord receiving reel 5 is an enlarged detail longitudinal section through one end of the revoluble twisting :lranie showing the manner of mounting the thread spool therein;

Fig. (i is a sectional View taken on the line G-t' of Fig. 5;

Fig. 7 is a transverse sectional view taken substantially on the li-ne 7-7 of Fig.A l;

Fig. Wis a detail section taken on the lin-e Fig. 8 is an enlarged vertical sectional view through the twisting head of the rev oluble frame and showing the cord tensioning means; i'

Fig. 9 is a detail vertical section of the feed means for directinflr the individual threads to the twisting hea' Fig. 10 is a detail vertical sectional view illustrating the slip friction drive clutch for the cord`receiving reel;

Fig. 1l is a detail elevation of the driving head for the reel;

Fig. 12 is a detail elevation of the reel driving sprocket and the friction ring carried thereby, and' Y Fig. 13 is a detail elevation of the frictionclutch plate. l

Referring inudeta-il to the drawings, the several parts of the machine are suitably mounted and arranged upon a `frame struo.

ture generally indicated at 5. On opposite ends of this frame structure standards 6 are mounted, each of said standards being provided with a suitably formed hub extension 7 to receive a shaft extension 9 at one end of the revoluble twisting frame 8. Preferably, suitable ball bearings indicated at l0 are interposed between .the frame ends and the bearing hubs .7 of the standards 6. One of the fra-me shaft extensions 9'has a longitudinally extending bore 11 through which the individual threads pass to a sheave 12 rotatably mounted in the twisting head 13 threadedor otherwise detaehably connected to the end of the frame shaft 9. After passin over this sheave, the cord formed by the ltwisted threads is drawn through an opening tions connected at spaced intervals by transverse Webs. 15, thereby dividing the frame structure into a plurality of sections. In each section of the frame, a thread spool is adapted to be mounted for independent rotation about an axis coinciding with the axis of revolution of thel frame 8.

As herein shown, the sleeve or tubular core 16 of each thread spool is adapted to be removably` fixed upon a shaft 17, saidA shaft having a wheel or disc 18 adjacent one of ,its ends against. which one end of the core 16 is adapted vto abut and being also provided vwith spaced cylindrical enlargements 19 snugly fitting within said tubular core. Adjacent its other end the, shaft 17 is provided with a threaded section 20 to receive the clamping nut 21 which is adapted to be adjusted thereon into engagement with the other end of the spool core 16 whereby the latter is thus rigidly held or lixed between said nut and the disc 18 against loneltudinal or rotative movement relative to the shaft 17 Each of the transverse webs of the frame 8 is centrally provided with a V- shaped recess 22 opening upon one edge therof and'leading to a bearing seat `23 which receives the opposed ends of the shaft 17 o' adjacent thread spools. The shaft ends are removably held u on the bearing seats 23 by means of the ocking members 24 pivotally mountedy upon the transverse webs 15 as at 25, each or these members is formed with a concave bearing surface 26 for engagement upon lthe upper sides of the shaft ends and is provided with an extension 27 adapted for engagement in a recess 28 in the edge of the web 15 of the frame. A yoke member 29 straddles the web 15 and has its arms pivoted thereto as at 36 and vcarries a set screw 31Vwhich is adapted to be adjusted into engagement with a recess or socket/32 rovided in the edge of the extension 27 o the locking member 24 as shown in Fig. 7 of the drawings. Thus. this mem- V ber 24 is securely fixed in position against pivotal movement with res ect to the revoluble :lr'amev and the en s of the spool shafts 17 are held upon their bearing seats.

The wheel or disc 18 is provided with a peripheral groove 33 adapted to receive a spring pressed brake member- 34 rnounted in an angularly oii'set arm 35 of the member 24. If desired of course, suitable means may be provided for adjusting the tension of the spring 36 so as to regulate braking pressure of the member 34 upon the walls of the groove 33. In addition to this brak- :ng means. l may also provide the members .57 mounted upon one side of the frame 8 and resiliently urged inwardly and upward- Lv with their free ends in bearing contact against the thread on the spool core 16.

Each or' the thread spools carries means for automatically actuating a suitable clutch device to disconnect the drive means for operating the frame 8 when a thread spool becomes exhausted. This means, as illustrated in the drawings,l comprises a pivoted dog 38 pivotall mounted as at 39 ipon the outer side o the disc or wheel 18 and having a tapering end portion 40 pro- )eating inwardly through an opening 41 in said disc and normally held by the pressure or' the thread indicated at T in contact with the spool core 16. A s ring 42 connected with the outer end of tie lug 38 tends to i'ocii said dog upon the pivot 39 and move the same outwardly throu h the opening 41 when the pressure of the tiread on the part 40 thereof is released. Said dog will thereby be positioned in the path ofthe free end of an arm 43 pivoted at its other end as at 44 on the web 15 of the frame. This pivoted arin has a lug 45 intermediate of its ends adapted to engage behind a head 46 on one end of a rod 47 which is slidably mounted in a guide sleeve 48 fixed in one side of the frame 8. This rod 47 is normally urged outwardly to the position shown in dotted lines in F ig. 7 by meansof the spring 49. When said rod 47 is pushed inwardly to the position shown in full lines in said figure. the head 46 engaging lug 45Afrst liftts the arm 43 slightly against the action of the spring 50 connected with the'frce end or' said arm. said spring then returning the arm to normal position and engaging the lu 45 behind said head` thus holding the rod 4 in the position shown in full lines in said figure. which is the normal position thereof in the operation or' the machine. However, when the thread on the spool becomes exhausted and the dog 38 is'moved outwardly through the opening in the wheel or disc 18, it' will be understood that said dog as shown :n dotted lines in Fig. 7 will engage the free end of arm 43 and lift the same, thereby releasing the rod 47 which is returned to its normal position by a spring 49 so that the outer end of said rodtas shown in dotted lines. will extend beyond .the side of the frame-in position to actuate means whereby he drive clutchv for frame'8 is released.

In the lower part of the frame 5, the longitudinall 'uamtendingdriving shaft 51 is iournalle and 'lqsakdrive wheel 52 loosely mounted upon onb`\\end thereof driven -.b v belt 53 from a suitable source of power such as au electric motor. This drive wheel .'32 is lll adapted to be xedly secured to the shaft 51 ov a c'lutch device of any. 1pproved form iiiiiicated at 54. The movab e element of this isol ' a spring 60 is interposed and acts to 4normally hold the movable element of the clutch device in its released position. A ver tically positioned hand operated lever 61 pivoted at its lower end as at l62 on the frame bar 57.

In .suitable spaced bearings 64 on the frame 5 a rock shaft 65 is mounted. An arm 66 is fixed to one end of this shaft and a spring 67 attached to said arm tends to normall)7 hold the same in a notch 69 provided in the upper edge of. an arm `68 pivotally connected as at 70 to the upper end of the lever 61. The severa-1 bearings 64 for the rock shaft are connected by a longitudinally extending rail 71 and upon one of said bearings a. locking dog 72 is pivotally mounted intermediate of its ends and is adapted to engage at one of its ends with a shoulder 74 on the periphery of a collar 73 fixed on the rock shaft 65. This rock shaft also carries a plurality of inwardly extending arms 75 in line with the several rods 47.

From the above description, it will be understood that the clutch is thrown in to conneet drive wheel 52 with shaft 51 by shifting the upper end of lever 61 to the right from the position shown in Fig. 2. vThe notch or recess 69 is thus moved to a position where it receives the arm 66 on shaft 65, and in such position the other inwardly extending arms 75 carried by the rock shaft occupy the position indicated in dotted lines in Fig. 7 of the drawings. When one of the rods 47 has been projected outwardly from the side of the frame upon the exhaustion of one of the thread spools in the manner above explained, said projecting end of the rod strikes the arm 75, thereby rocking the' shaft against the action of spring 67 and disengaging arm`66 from the notch 69 in the arm 68. A leaf spring 76 on the under side of rail 71 bearing upon the end of the locking dog 72 engages the latter with the shoulder 74 on the collar 78, thus holding the rock shaft against reverse rotation under the action of spring 67. The spring 6() may thus act to shift the bar 57, thereby actuating lever 55 to move the movable element of the clutch device 54 #to its released position. Thus the transmission of power to the shaft 51 is iiiterrupted' and the operation of the machine automatically stopped so that the exhausted thread spool can be readily removed anda new spool secured upon the shaft 17.

pivotallyconnected as aty 63 .with the From the several thread s ools the threads T areled through a suita le guide 77 on one side of the frame 8 and also through guide openings provided in the several`webs 15 of the frame. Uponthe web 15 at one end of the frame there is mounted a device automatically operating upon the breakage of anyone of the several threads to actuate rock shaft 65 and release the drive clutch as above explained. This device in a preferable embodiment thereof is 'shown in detail in Figs. 7 and 7 and may be explained as follows:

Upon one side of the bracket plate 78 fixed tothe web 15 a plate 79 is secured and is provided with a series of spaced parallel lugs 80 and between these lugs the fingersSl are pivotally mounted at one of their ends upon a rod 82. Guide thimhles 83 for the threads are fitted into coinciding openingsin the bracket 78 and plate 79 and rigidly fixed in place by means of the set screws 84 threaded in the bracket plate. In their normal positions, the free ends of the pivoted fingers 81 engage stop pins 85 which limit the swinging movement of said fingers towards the plate 79 and support the several fingers at a slight outward inclination with respect to the plane of said plate as shown in Fig. 7n of the drawings. v These free end portions of the fingers also have openings 86 therein through which the respectlve threads extend as shown .in Fig. 7 of the drawings. So long as there is suiicient tensional pull on the several threads, the pivoted fingers 81 are held in their normal position shown in Fig. 7". VIn the event, owever, that any one of the threads should break, the guide linger through' the opening of which said thread extends, is released and in the hi h speed revolution of the frame 8 the said nger will be thrown outwardly by centrifugal force to the position indicated in dot-ted lines in Fig. 7 of the drawings so that its free end will then be disposed in the path of one of the arms 75 on the rock shaft 65 and will operate said rock\lshaft to release the driving clutch connection to the shaft 51, thus stopping the operation of the machine in the manner heretofore explained.

In order 'to maintain a proper tenslon upon the individual threads after they are drawn through the several guide fingers 81 and as they are fed to the twisting head of the frame 8, a roller 87 is mounted in one end of a channelled supporting bar 87 fixed in the frame 8, the vsurface of said roller being covered with emery cloth as indicated at 88. In the rear of this roller and in spaced relation thereto, a second guide roller 89 for the threads is mounted. As shown in Fig. 9 of the drawings, the individual threads first extend over and around the roller 87, the emery cloth facing thereof maintaining said threads in proper spaced relation, the

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said threads then extendine` inwardly and around the guide roller 89 From which they extend in gradually eonver ing relation into and through the bore 11 o the shaft extension 9 of the revolving frame and over the sheave 12v mounted in the twisting head 13. At this point, namely, u on the slieave 12. the several threads are twisted together upon each other and thereby form the cord indicated at C.

At opposite sides of the twisting head 13, longitudinally extending bracket arins 90 are fixed to the machine frame and project beyond the head 13. ln the ends of these arms a pair of guide sheaves 91 and 92 respectively, are rotatably mounted. "lhe cord C aiter leaving the sheave 12. passes downwardly around the sheave 91 and around roller 93 fixed on sha-tt 94 journalled in spaced bracket arms 95 iixed to the end of the machine frame. This roller 93 is also rovided with a facing ot emery cloth and romthe same the cord C extends upwardly and around the other sheave 92 and hence downwardly through a transversely travelling guide 96 to a suitable reel to be later referred to. Spaced lever bars 97 are pivoted at their upper ends as at 98 to the respective bracket arms 90 and between the lower ends of these levers a roller .)9 is rotatably mounted and is yield-ingly urged by a, suitable spring 100 connected with the lever bars 97 and bearing against standards 6 upon the cord C as it passes upwardly around roller 93.

Upon the brackets 101 projecting from the end of the machine frame 5. standards 102 are mounted. In' the upper end of one of these standardsa stud shaft 103 is rigidly fixed. Upon this stud shaft a reel supporting head 104 is rotatably journalled, said head being provided with an externally threaded hub extension 105. This reel head is preferably in the form of a disc 106 having radially extending arms 107. The outer face of said dise is formed with an annular depression or recess 108 and inwardly thereof with a beveled annular face 109. An annular plate 110` is adapted to be engaged upon the hub extension 105 and one side face thereof is also formed with an annular depression or recess 111 and with the beveled annular surface 112 which are adapted to be opposed to the corresponding surfaces 108 and 109 of the disc 106. Between said dise and the annular plate and spacing the same apart the ring 113 is arranged. This ring, the dise 106 andthe plate 110 are provided with coinciding openings to receive the pins 114 whereby the parts are locked together against relative rotation. A nut 115 is threaded upon the hub extension 105 against the outer side of the plate 110.

The driving sprocket 116 for the reel has an internal annular ring 117 of leather or other friction material connected to said sprocket by means of a lurality of radially extending pins 118. his leather annuliis .s positioned between the late 110 and the aise 106. the opposite si es thereof being :frzetionaily engaged with the surfaces 111 .ind 108 respectively of said plate and disc. 1`hus. it will he understood that this leather ring or annulus 117 acts as a` friction slip iutch member for transmitting rotation ii-oni ilie drive sprocket 116 to the reel head.

An the other of the standards 102 :i clainp- `ng screw 119 is threaded and hasl a clamp- ;ng head 120 swiveled on its inner end. The reci shown at 121 may be 0f the usual forni consisting of the crueiform end members connected by a snltable core. The radially proiecting members at one end of the reel are provided with recesses or sockets tlieren ndiealed at 122 in Fig. 11 to receive the laterally proiectinfT arms 107 of the head .06. lt' desired. the arms of the reel may Je provided with adjustable screws indicated at 123 for binding engagement against die arms 107. `after thus positioning the reci. the screw 119 is then adjusted to enlage the clamping head 120 with the other And ot the reel and thus rigidly clamp and secure the reel between said head and the lead 106.

)ne end of the Shaft 94 luis a beveled gear A:21 lixcd thereto meshin with the gear 125 in Lne power transmission shaft 126. A i-.oiintershaft 127 has two gears 1:28 oi dil'- arent diameters adjustably mounted thereon and adapted for engagement respectively with the spaced gears 129 and 130 iixed on the shaft 126 whereby the latter shalt may be driven at different speeds. Countershal't 127 is driven by the eountercliaiii connection 131 from a shaft 132 which in turn is driven by the chain or belt connection 1321 with the operatin shaft 51.

The drive sproc et 116 for the cord winding reel is connected by the endless sprocket chain 134 with a sprocket 135 fixed upon the shaft 94.

For the purpose of winding the cord even ly on the reel 121` the eoi'd guide 96 is moved transversely back and forth for the lengthl of the reel. For this purpose, I have herein shown said `guide fixed to an endless belt or chain 136 engaged at its opposite ends with suitable sprockets on shafts 137 mounted in a bar 138 fixed at its ends to the brackets 95. One of these shafts 137 is rotatably mounted insaid bar and has a gear 139 sec'ured thereon meshing with the pinion 140 tixed io a second l shaft suitably mounted on said har 188. The latter shaft :s also provided with a worm gear 1-11 which is in constant iiiesh with a worm 142 on the matt 94. Thus. it will be understood that lie cord guide 96 is continuously moved back and forth for the entire length of the rcel loo llO

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and in synchronized relation with the rotation of said reel. As the cordaccumulates upon the reel so that the surface speed of rotation of the reel gradually changes to the speed of rotation of the driving sprocket 116 for said reel, the leather friction ring 117 fixed to the sprocket will slip between 'the opposed faces of the reel head and the plate 110, thus automatically compensating for saidl differences' in speed of rotation and maintaining a substantially constant uniform tensional pull on the cord. Y

From the foregoing description considered in connection with the accompanying drawings, the construction, manner of operation and several advantages of my improved cording machine will be clearly understod. lVhile in the drawings I have shown a machine having a four spool capacity, it Will be understood that the machine may be constructed to operate with a greater or less number of the thread spools as desired. lVhen any one of the spools becomes eX- hausted, by merely releasing the yoke member 29 and moving the same to the position shown in dotted lines in Fig. 7, the member 24 may be swung outwardly away from the spool shaft, thus permitting of the easy and quick removal of the exhausted spool from the frame' 8. Also by providing the automatically operating means for stopping the machine when a spool becomes exhausted or a thread-breaks, imperfections in the product and Waste of materials is reduced to a ,minimum. For the purpose of protecting the attendant or operator, I may provide a guard of wire screen or other Similar material indicated at 143 extending over the revolving frame 8y and suitably secured to the main frame 5 and the end standard 6. 0f course this screen will be provided with suitable hinged or movably mounted sections so that access may be had to the several thread screws.

"While have herein shown and described an embodiment of my present improvements which has given excellent results in practice, it will nevertheless be understood that the several novel features of the machine are susceptible of embodiment in variousA other alternative forms, and I therefore, reserve the privilege of resorting to all such legitimate changes in the form, construction and relative arrangement of the several elements as may be fairly embodied Within the spirit and scope of the invention as claimed."

1. In a cording machine, a revoluble twisting frame, thread spool shafts removably mounted at their ends vin said frame, members pivotally mounted upon the :frame for releasable bearing en agement upon one end of the res ective sha ts, a head fixed on each spool sha t, and a brake element on each of said pvoted members for frctional engagelspool s ment with the periphery of the respective spool shaft heads.

2. In a cording machine, a revoluble ltwisting frame, a plurality of thread spool Shafts mounted in said frame in alignment with each other, members pivotally mounted upon the vframe and having releasable hearing engagement upon the ends of adjacent afts, additional means on the frame for securing said members against pivotal movement, a head fixed on each of the spool shafts, and resiliently yieldable braking elements carried by said pivoted members frictionally engagin the peripheral surfaces of said spool shaft eads.

v 3. In a cording machine, a revoluble twisting frame, a plurality of thread spool shafts mounted in said frame for independent rotation in axial alignment With the axis of revolution of said frame, means for clamping a thread spool on each shaft including a head fixed on the shaft,and means for removably retaining the spool shafts in operative position in the frame including members pivotally mounted on the frame for bearing engagement upon the ends of adjacent spool shafts, means for locking said members to the frame against pivotal movement, and means carried by said members for applying a frictional braking pressure against the peripheral faces of the heads on saidspool shafts.

4. -In a cording machine, a revoluble twistingframe, a plurality of thread spool shafts mounted in said frame for independent rotation in axial alignment With the axis of revolution of said frame, means for clamping a thread spool on each shaft including a head fixed on the shaft and having a continuous groove in its periphery, means for removably retaining the spool shafts in operative position -in the frame including members pivotally mounted on the frame for bearing engagement upon the ends of adjacent spool shafts, means for locking said members to the frame against pivotal movement, and braking elements mounted upon said pivoted members and having yieldable frictional engagement with the Walls of the grooves in the respective heads on said spool shaft 5. In a cording machine, a revoluble twisting frame, means for removably mounting a plurality of thread carrying spools in said frame for independent rotation, drive means for said frame including a shiftable .clutch member, latch means for holding the clutch member in effective driving position, and means for actuating said latch means to release the clutch upon exhaustion of the thread on any one of the spools, said means including a rock shaft having a plurality of arms fixed thereon, spring projected rods mounted in the twisting frame to cooperate with the respective arms, means maV ` for holding said rods in a retracted osition 'in the frame, and devices controlle by the thread on the res ective spools and automatically operate upon the exhaustion of the thread therefrom to actuate said lastnamed means whereby oneof the rods is projected to engage one of the arms on said i means and the frame, means for shiftin said clutch to its released position, a latc for holding the latter means against operation, and means for automatically actuating said latch upon the breakage of any one of the threads, said means including a rock shaft having an arm iixed thereon, a plurality of pivoted lingers mounted on the twisting Jframe and having openings through which the respective threads are drawn whereby saidfingers are held in a normal position by the tension of the threads, and said fingers being independently projected by centrifugal force upon the breakage of one of thethreads into the path of movement of the arm on said rock shaft whereby the latch Fmeans is actuated to release said head. operating means for said frame, a.

cord receiving reel receiving the cord from said twisting head, and means for driving said reel at variable speeds relative to the speed of revolution of said frame.

B. In a cord twist-ing machine, a revoluble frame, means for mounting a plurality of thread carrying spools in said frame for independent rotation, a twisting head fixed t0 one end of the frame, means mounted in :the axis of said frame for directing the threads from said spools to the twisting head, operating means for said frame, a cord receiving reel receiving the cord from said twisting head` said twisting head having means mounted therein for permanently localizing the point of twist of the threads, and means for driving the cord receiving reel at variable speeds relative to the speed of revolution of said frame.

ln testimony that I claim the foregoing as my invention` I have signed my name hereto.

JOSEPH FINKELSTEIN. 

